| Chartered Institution of Management Accountants | Accounts and Finance |
| Certified Investment Management Analysts | Business |
| CIMA Laboratories, Incorporated | Business |
| Cellulose Insulation Manufacturers Association | Business |
| Chicago Interactive Marketing Association | Business |
| Center for Information Management and Assurance | Business Management |
| Charted Institute of Management Accountants | Business Management |
| Chartered Institute of Management Accontants | Business Management |
| Certified Investment Management Analyst | Business Management |
| Cambridgeshire Instrumental Music Agency | Community |
| Centre for International Media Analysis | Community |
| Catholics In Media Associates | Community |
| Carrier Interference Multiple Access | Computing |
| Comité International de Micro Aviation | General |
| Channel Industries Mutual Aid | General |
| Commission on Information Measurement Analysis | General |
| Commission on Information Measurement and Analysis | General |
| Comodo Instant Malware Analysis | General |
| Catholics In Media Award | General |
| Caribbean Institute for Missions Advancement | Governmental |
| Cayman Islands Monetary Authority | Governmental |
| Center for Italian Modern Art | International |
| Center for International Media Assistance | International |
| Chenille International Manufacturers Association | International |
| Centro de Investigación y Medicina Aeronáutica | International |
| Comisión Interministerial del Medio Ambiente | International |
| Capital Internal Medicine Associates | Medical |
| Centro Internacional de Medicina Avanzada | Medical |
| Chartered Institute of Management Accountants | Organization |
| Canadian Independent Music Association | Regional |